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Finding the Fourth Proportional to 66,698.46, 100,162.29 and 59,218.86

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Solution

The fourth proportional to 66,698.46, 100,162.29 and 59,218.86 is: 88,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,698.46 : 100,162.29 = 59,218.86 : x
  2. Step 2: Convert to fraction form
    66,698.46/100,162.29 = 59,218.86/x
  3. Step 3: Cross multiply
    66,698.46x = 100,162.29 × 59,218.86
  4. Step 4: Simplify right side
    66,698.46x = 5,931,496,628.79
  5. Step 5: Solve for x
    x = 5,931,496,628.79/66,698.46
  6. Step 6: Final answer
    x = 88,930.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.